package cn.jimu98.controller;

import cn.jimu98.entities.CommonResult;
import cn.jimu98.entities.Payment;
import cn.jimu98.lb.LoadBalancer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @Classname OrderController
 * @Description TODO
 * @Date 2020/6/25 23:18
 * @Created by kaibo
 */
@RestController
@Slf4j
public class OrderController {
    public static String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";
    @Resource
    private LoadBalancer loadBalancer;

    @Resource
    private RestTemplate restTemplate;
    @Resource
    private DiscoveryClient discoveryClient;

    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL + "/payment/create", payment, CommonResult.class);
    }

    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id")Long id){
        return restTemplate.getForObject(PAYMENT_URL + "/payment/get/" + id, CommonResult.class);
    }

    @GetMapping("/consumer/payment/getForEntity/{id}")
    public CommonResult<Payment> getPayment2(@PathVariable("id")Long id){
        ResponseEntity<CommonResult> entity = restTemplate.getForEntity(PAYMENT_URL + "/payment/get/" + id, CommonResult.class);
        if (entity.getStatusCode().is2xxSuccessful()) {

            return entity.getBody();
        }else{
            return new CommonResult<>(444, "操作失败");
        }
    }
    @GetMapping(value = "/consumer/payment/lb")
    public String getPaymentLB(){
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if (instances == null || instances.size() <= 0) {
            return null;
        }
        ServiceInstance serviceInstance = loadBalancer.instances(instances);
        URI uri = serviceInstance.getUri();
        return restTemplate.getForObject(uri+"/payment/lb",String.class);

    }

    @GetMapping("/serviceurl")
    public Map<String, List<ServiceInstance>> serviceUrl() {
        Map<String, List<ServiceInstance>> msl = new HashMap<>();
        List<String> services = discoveryClient.getServices();
        for (String service : services) {
            List<ServiceInstance> sis = discoveryClient.getInstances(service);
            System.out.println(sis);
            msl.put(service, sis);
        }
        return msl;
    }
    @GetMapping("/consumer/payment/zipkin")
    public String paymentZipkin()
    {
        String result = restTemplate.getForObject("http://localhost:8001"+"/payment/zipkin/", String.class);
        return result;
    }

}
